The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2012
Filed:
Mar. 02, 2005
Applicants:
Karine Loyen, Pont-Audemer, FR;
Holger Senff, Serquigny, FR;
Francois-xavier Pauly, Le Neubourg, FR;
Inventors:
Karine Loyen, Pont-Audemer, FR;
Holger Senff, Serquigny, FR;
Francois-Xavier Pauly, Le Neubourg, FR;
Assignee:
Arkema France, Colombes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 77/02 (2006.01); C08G 69/04 (2006.01); C08G 69/14 (2006.01); C08G 69/16 (2006.01); C08G 69/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the preparation of polyamide-12 powder by anionic polymerization of lauryllactam in solution in a solvent of the lactam, the polyamide-12 powder being insoluble in this solvent, the polymerization being carried out: